Hand Sensation Mapping

Abstract

An improved low-fidelity single-plane-based haptic rendering that affect the sensation designed by a sensation editor (sketch-based UI) tool is described by generating a dynamic mapping to redirect the haptic rendering over a 3D hand model in real-time. The four solutions comprise (1) the generation of a bijective mapping between the template (2D) and hand spaces (3D), (2) a direct skinning approach for sensation relocation in 3D, (3) a direct 3D to 3D mesh mapping, and (4) a smooth-blend skinning directly to the sensation points. This allows a playful action which continuously provides feedback to the user as they progress along their actions-in this case the object becoming “squished” as they select it, and “unsquished” as they summon it.

We claim: 
     
         1 . A method comprising:
 scanning a hand having a palm and a plurality of phalanges;   defining a plurality of local spaces for the palm and the plurality of phalanges;   for each of the plurality of local spaces, computing a cylindrical projection for a sensation plane over a 3D hand model.